VOLTERRA SERIES BASED ANALYSIS OF COMPONENTS NONLINEARITIES IN A LIMITED-BANDWIDTH FRACTIONAL DIFFERENTIATOR ACHIEVED IN HYDROPNEUMATIC TECHNOLOGY

The fractional differentiator is a linear operator but it can be very convenient to achieve it with nonlinear components. This paper presents an analysis method for components nonlinearities of a suspension whose force-deflection linearized transfer function is a limited-bandwidth fractional differentiator (CRONE suspension). The analysis method is based on Volterra series decomposition and on nonlinear systems association with George algebra.